VPC seems to want to imply that Thirdpower, a veteran who has served and continues to serve his country, is barely literate. They suggest he needs to do “more readin’ and less shootin’ bub.” Regardless of the merits of their argument, I find this to be mean spirited and rude, and telling of the stereotypes and prejudices the folks at the VPC apparently have about gun owners.
I might have even been willing to concede VPC’s point on the quote, since they only directly quoted “I’m done,” but their paraphrase of the rest could conceivably change the definition of the quote, depending on whether there’s a dropped comma between “away” and “from.” In the context presented, the quote doesn’t make much sense. Thirdpower’s accusation that the meaning was altered is entirely plausible.